Two :id in rails route for DELETE

Question

I have the following rails route

model_name DELETE model_name/:id/comments/:id(.:format)

and I was wondering when I call params[:id] in the destroy method, what :id does it take? The first or the second?

Answer 1

Your route should be

DELETE model_name/:model_id/comments/:id(.:format)

So params[:model_id] will take the first one and params[:id] will take the 2nd one(comment id)

for more details http://guides.rubyonrails.org/routing.html#nested-resources